Results 11 to 20 of about 21,041 (225)

Quantum cohomology as a deformation of symplectic cohomology

open access: yesJournal of Fixed Point Theory and Applications, 2022
AbstractWe prove that under certain conditions, the quantum cohomology of a positively monotone compact symplectic manifold is a deformation of the symplectic cohomology of the complement of a simple crossings symplectic divisor. We also prove rigidity results for the skeleton of the divisor complement.
Borman, Matthew Strom   +2 more
openaire   +5 more sources

BRST cohomology is Lie algebroid cohomology

open access: yesNuclear Physics B, 2023
27 pages, 1 figure; v3: minor typos fixed; published ...
Weizhen Jia   +2 more
openaire   +4 more sources

Cohomological finiteness conditions in Bredon cohomology [PDF]

open access: yesBulletin of the London Mathematical Society, 2010
We show that any soluble group $G$ of type Bredon-$\FP_{\infty}$ with respect to the family of all virtually cyclic subgroups such that centralizers of infinite order elements are of type $\FP_{\infty}$ must be virtually cyclic. To prove this, we first reduce the problem to the case of polycyclic groups and then we show that a polycyclic-by-finite ...
Kochloukova, D.H.   +2 more
openaire   +3 more sources

On a cohomology of digraphs and Hochschild cohomology [PDF]

open access: yesJournal of Homotopy and Related Structures, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Grigor'yan, Alexander   +2 more
openaire   +1 more source

Satellites of Functors for Nonassociative Algebras with Metagroup Relations

open access: yesMathematics, 2022
The article is devoted to non-associative algebras with metagroup relations and modules over them. Their functors are studied. Satellites of functors are scrutinized. An exactness of satellite sequences and diagrams is investigated.
Sergey Victor Ludkowski
doaj   +1 more source

THE INTEGRAL COHOMOLOGY OF THE HILBERT SCHEME OF TWO POINTS

open access: yesForum of Mathematics, Sigma, 2016
The Hilbert scheme $X^{[a]}$ of points on a complex manifold $X$
BURT TOTARO
doaj   +1 more source

Fredholm modules over categories, Connes periodicity and classes in cyclic cohomology

open access: yesComptes Rendus. Mathématique, 2023
We replace a ring with a small $\mathbb{C}$-linear category $\mathcal{C}$, seen as a ring with several objects in the sense of Mitchell. We introduce Fredholm modules over this category and construct a Chern character taking values in the cyclic ...
Balodi, Mamta, Banerjee, Abhishek
doaj   +1 more source

En–cohomology with coefficients as functor cohomology [PDF]

open access: yesAlgebraic & Geometric Topology, 2016
Building on work of Livernet and Richter, we prove that E_n-homology and E_n-cohomology of a commutative algebra with coefficients in a symmetric bimodule can be interpreted as functor homology and cohomology. Furthermore we show that the associated Yoneda algebra is trivial.
openaire   +3 more sources

A Cohomology Theory for Commutative Monoids

open access: yesMathematics, 2015
Extending Eilenberg–Mac Lane’s cohomology of abelian groups, a cohomology theory is introduced for commutative monoids. The cohomology groups in this theory agree with the pre-existing ones by Grillet in low dimensions, but they differ beyond dimension ...
María Calvo-Cervera, Antonio M. Cegarra
doaj   +1 more source

Dieudonné theory via cohomology of classifying stacks

open access: yesForum of Mathematics, Sigma, 2021
We prove that if G is a finite flat group scheme of p-power rank over a perfect field of characteristic p, then the second crystalline cohomology of its classifying stack $H^2_{\text {crys}}(BG)$ recovers the Dieudonné module of G.
Shubhodip Mondal
doaj   +1 more source

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